import {z} from 'zod'

export type DocumentMetaPropertiesIdentifier = string;

export type DocumentSplitPage = {id: number, rotation?: number | undefined};

export type DocumentSplit = {identifier?: string | undefined, pages: Array<DocumentSplitPage>};

export type DocumentEditRequest = {splits: Array<DocumentSplit>};

export type CreateApiV3ValidateIdentifierSplitArgs = {identifier: DocumentMetaPropertiesIdentifier, body: DocumentEditRequest};

export type CreateApiV3ValidateIdentifierSplitOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const fileName = z.string().nullable();

export const expiryTime = z.string().nullable();

export const metaPropertiesIdentifier = z.string();

export const pageMeta = z.object({id: z.number().int().gte(1), pageIndex: z.number().int().gte(0), image: z.string().nullable(), imageTranslated: z.string().nullable().optional(), height: z.number(), width: z.number(), rotation: z.number().int().gte(-360).lte(360)});

export const regionBias = z.object({country: z.string().nullable().optional(), countries: z.array(z.string()).nullable().optional(), squareCoordinates: z.array(z.number()).nullable().optional(), strict: z.boolean().optional()}).nullable();

export const meta = z.object({identifier: z.string().optional(), customIdentifier: z.string().nullable().optional(), fileName: fileName.optional(), ready: z.boolean().optional(), readyDt: z.string().nullable().optional(), failed: z.boolean().optional(), expiryTime: expiryTime.optional(), language: z.string().nullable().optional(), pdf: z.string().nullable().optional(), parentDocument: z.object({identifier: metaPropertiesIdentifier.optional()}).nullable().optional(), childDocuments: z.array(z.object({identifier: metaPropertiesIdentifier.optional()})).optional(), pages: z.array(pageMeta).optional(), isVerified: z.boolean().optional(), reviewUrl: z.string().nullable().optional(), ocrConfidence: z.number().nullable().optional(), createdDt: z.string().optional(), documentType: z.string().optional(), regionBias: regionBias.optional(), isOcrd: z.boolean().optional()});

export const documentEditResponse = z.array(meta);

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Split pages of a document
 * 
 * POST /v3/validate/{identifier}/split
 */
export const createApiV3ValidateIdentifierSplit = async (args: CreateApiV3ValidateIdentifierSplitArgs, options?: CreateApiV3ValidateIdentifierSplitOptions) => {
const {baseUrl = "https://api.affinda.com", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (ApiKeyAuth !== undefined) headers.set('authorization', `Bearer ${ApiKeyAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/validate/${encodeURIComponent(String(args.identifier))}/split${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(documentEditResponse, await res.json())
};